Posted by C Language MCQs (100% free pdf download)
95. If ptr is a pointer to int, having value ptr=100. After ptr++, what is the value of ptr?
(a)100
(b)101
(c)102
(d)103
96. Address stored in the pointer variable is of type ________
(a) Integer
(b) Floating
(c) Hexadecimal
(d) Character
97. ………… is the method used by card sorter.
a) Radix sort
b) Insertion
c) Heap
d) Quick
98. Partition and exchange sort is ……..
a) quick sort
b) tree sort
c) heap sort
d) bubble sort
99. Which of the following is a disadvantage of linear search?
a) Requires more space
b) Greater time complexities compared to other searching algorithms
c) Not easy to understand
d) All of the mentioned
100. Consider the array A[]= {5,4,9,1,3} apply the insertion sort to sort the array Consider the cost associated with each sort is 25 rupees, what is the total cost of the insertion sort for sorting the entire array?
a) 25
b) 50
c) 75
d) 100
101. The first expression in a for… loop is
a) Step value of loop
b) Value of the counter variable
c) Condition statement
d) None of the above
102. Continue statement used for
a) To continue to the next line of code
b) To stop the current iteration and begin the next iteration from the beginning
c) To handle run time error
d) None of above
103. Which of the following loop is executed at least once?
a) do-while
b) for
c) if
d) while
104. Which among the following is a unconditional control structure.
a) goto
b) for
c) do-while
d) if-else
105. Which of the following is ternary operator?
(a) ??
(b) ?:
(c) 😕
(d) ::
106. ASCII value of ‘A’ is .
(a) 55
(b) 75
(c) 65
(d) 85
107. Which are not looping structures?
(a) Forloop
(b) Do…whileloop
(c) Whileloop
(d) if…else
108. How many times the following code prints the string “hello”
for(i=1;i<=50;i++);
{
printf(“Hello”);
}
(a)1
(b)Zero
(c)50
(d) None ofthem
109. Which of following is not a valid assignment expression?
(a) Y =22;
(b) s = x ;
(c) y % = 6;
(d) z=5=3;
110. How many times the following loop will be executed.
main( )
{
int i = 32766;
while(i<=32767)
{
printf(“%d\n”,i);
i = i +1;
}
}
(a) 2 times
(b) 1 times
(c) Infinite time
(d) loop will not be executed
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111. What is the output of the following code:
void main()
{
int i;
for(i=1;i<=10;i++);
{
printf(“%d\n”,i);
}
}
(a) 10
(b) 1 to 10
(c) 11
(d) None of the above
112. What is the output of the following code:
void main()
{
int i;
for(i=65;i<70;i++)
{
printf(“%c,”,i);
}
}
(a) 65,66,67,68,69,70
(b) a,b,c,d,e,
(c) A,B,C,D,E
(d) A,B,C,D,E
113. What is the output of the following code:
void main()
{
int i=5;
switch(i)
{
case 3: printf(“three”);
case 4: printf(“four”);
case 5: printf(“five”);
case 6: printf(“six”);break;
case 7: printf(“seven”);
default: printf(“default”);
}
}
(a)five
(b)fivesixsevendefault
(c) fivesix
(d) None of the above
114. ASCII value of ‘a’ is
(a) 97
(b) 65
(c) 47
(d) None of the above
115. Break statement is used for
(a) Quit a program
(b) Both a and b
(c) Quit the current iteration
(d) None of the above
116. Which one is the correct syntax of for loop?
(a) for(initialization, condition, increment/decrement)
(b) for(initialization; condition; increment/decrement)
(c) for(condition, condition, increment/decrement)
(d) for(condition; initilization; increment/decrement)
117. What is the output of following C code?
int k;
for(k=1;k>=10;k++);
printf(“Hello”);
(a) prints “Hello” 10 times
(b) prints nothing
(c) prints “Hello” infinite times
(d) prints “Hello” 1 time
118. For loop is _________.
(a)Function Controlled Loop
(b)Exit Controlled Loop
(c)Entry Controlled Loop
(d) None of these
119. What will be the output of following code.
{
int x = 10, y=15;
x = x++;
y = ++y;
printf(“%d, %d \n” , x, y);
}
(a) 10, 15
(b) 10, 16
(c) 11, 16
(d) 11, 15
120. Which of the following is used as a string termination character?
(a) 0
(b) \0
(c) /0
(d) None of these
121. Which of the following function is more appropriate for reading in a multi word string?
(a) printf();
(b) scanf();
(c) gets();
(d) puts();
122. Array index start at
(a) 1
(b) User Defined
(c) 0
(d) None of above
123. Every string is terminated by NULL character. How it is represented?
(a) ‘\0’
(b) NULL
(c) both a and b
(d) None of above
124. The format string to accept a string is
(a)%c
(b)%d
(c)%f
(d)%s
125. Which header file is necessary for strlen() function?
(a)conio.h
(b)strings.h
(c)string.h
(d)stdio.h
126. Recursion is a process in which a function calls
(a) itself
(b) another function
(c) main() function
(d) none of the above
127. When function calls itself, it is known as .
(a) Recursion
(b) exit control loop
(c) Nested loop
(d) user defined function
128. A pointer value refers to
a) A float value
b) An integer constant
c) Any valid address in memory
d) None
129. If ptr is a pointer to int, having value ptr=100. After ptr++, what is the value of ptr?
(a) 100
(b) 102
(c) 101
(d) 103
130. What is the output of the following C code?
int main()
{
int *ptr,a=10;
ptr = &a;
*ptr +=1;
printf(“%d%d\n”,*ptr,a);
}
(a) 10,10
(b) 10,11
(c) 11,10
(d) 11,11
131. Address stored in the pointer variable is of type _________
(a) Character
(b) Integer
(c) Floating
(d) Array
132. Structure can contain elements of the different data type
(a) true
(b) false
133. Which of the following operator is used to select a member of a structure variable
(a) .(dot)
(b) ,(comma)
(c) : (colon)
(d) ;(semicolon)
134. Default value of global variable is
(a) 0
(b) Garbage value
(c) 1
(d) Depend on datatype
135. Default value of local variable is
(a) Garbage value
(b) 0
(c) 1
(d) Depend on data type
136. MACRO is used to _______
(a) Save memory
(b) Both a & c
(c) fast execution
(d) none of above
137. Which of the following operator is used to select a member of a structure variable
(a) .(dot)
(b) ,(comma)
(c) : (colon)
(d) ;(semicolon)
138. What is the output of the following code:
void main()
{
enum day { Mon,Tue,Wed,Thu,Fri,Sat,Sun};
printf(“%d”,Fri);
getch();
}
(a) 5
(b) Error
(c) 4
(d) Fri
139. Difference between calloc() and malloc()
a) calloc() takes a single argument while malloc() needs two arguments
b) malloc() takes a single argument while calloc() needs two arguments
c) malloc() initializes the allocated memory to ZERO
d) calloc() initializes the allocated memory to NULL
140. Which function reallocates memory?
(a) realloc
(b) calloc
(c) malloc
(d) None of these
141. Which function should be used to release allocated memory which is not needed?
(a) dealloc
(b) free()
(c) release()
(d) unalloc()
142. File manipulation functions in C are available in which header file?
(a) streams.h
(b) stdio.h
(c) stdlib.h
(d) files.h
143. When fopen() fails to open a file it returns
(a) NULL
(b) 1
(c) -1
(d) None of above
144. Which function is used to put the file pointer at the desired location in the file?
(a) fseek()
(b) rewind()
(c) ftell()
(d) fptr()